EP1057537B1 - Ensemble de valve de décharge pour pulvérisateur à gachette - Google Patents
Ensemble de valve de décharge pour pulvérisateur à gachette Download PDFInfo
- Publication number
- EP1057537B1 EP1057537B1 EP00304585A EP00304585A EP1057537B1 EP 1057537 B1 EP1057537 B1 EP 1057537B1 EP 00304585 A EP00304585 A EP 00304585A EP 00304585 A EP00304585 A EP 00304585A EP 1057537 B1 EP1057537 B1 EP 1057537B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- valve assembly
- discharge
- assembly according
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1009—Piston pumps actuated by a lever
- B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
Definitions
- This invention relates generally to a discharge valve assembly for a trigger actuated pump sprayer, and more particularly to such a valve assembly as having a product retraction feature to avoid the formation of dribbles and drips of liquid product at the discharge orifice when in use.
- Another feature of the invention provides for reducing the volume of the discharge passage leading from the pump chamber to the discharge orifice to aid in pump priming.
- Trigger actuated pump sprayers are known to have certain basic features, namely, a trigger actuated piston operating in a pump cylinder, a valve controlled inlet leading to the pump chamber, and a valve controlled discharge leading away from the chamber.
- a trigger actuated piston operating in a pump cylinder
- a valve controlled inlet leading to the pump chamber leading to the pump chamber
- a valve controlled discharge leading away from the chamber During each piston return stroke, the internal pump pressure falls below atmospheric as the pump chamber volume expands to thereby induce the flow of liquid product into the chamber from the container through the inlet via an unseated inlet check valve.
- the pump chamber is thus charged (or primed) and recharged with liquid product during each suction stroke.
- the discharge check valve is drawn closed against its valve seat to both seal the discharge closed and to facilitate pump priming.
- the trigger sprayer is typically structured as having a relatively long discharge barrel leading form the pump chamber to the discharge orifice at the nozzle end thereof.
- the discharge barrel defining the discharge passage is formed integrally with the pump body during the molding operation and is thus sized sufficiently to facilitate ease in molding.
- the diameter and length of the discharge passage provides a volume which fills with product during the pumping operation and remains substantially filled during use.
- the volume reduction of the discharge passage has been found a factor in reaching an acceptable strokes-to-prime ration, as less volume is required to be occupied by product during the initial pressure strokes, thereby effecting an earlier discharge through the orifice.
- US-A-5687877 upon which the precharacterising clause of claim 1 is based, discloses a check valve for a pump dispenser having a flexible valve member slidably mounted in a discharge passage, the valve member being drawn backwards upstream and away from a discharge orifice upon closing of the valve so as to suck liquid back from said orifice and hence reduce nozzle drip.
- a discharge valve assembly adapted for used use with a pump sprayer to be mounted on a liquid container, the sprayer having a pump body including a discharge barrel having a discharge orifice at a downstream end thereof, the valve assembly comprising a flexible valve disc having an outer peripheral edge in sealing engagement with an inner wall of said barrel in a valve closed position, characterised by means comprising spin mechanics fixed at said downstream end, and a filler member disposed in said barrel extending substantially between an upstream end of the barrel and said spin mechanics means for reducing volume of the liquid product within the barrel during operation of the pump sprayer, said filler member defining a discharge passage for the discharge of liquid product from the orifice.
- the present invention further provides a trigger actuated pump sprayer comprising, a discharge valve assembly according to the invention, and a variable volume pump chamber in communication with said discharge barrel, said variable volume pump chamber defined by a manually reciprocable piston operating between pressure and return strokes within a pump cylinder of said body for discharging liquid product through said discharge orifice at said downstream end of said barrel, said valve disc being in sealing engagement along its outer periphery with an inner wall of said barrel in a valve closed condition during the piston return strokes, at least a portion of said outer periphery disengaging said inner wall in a valve open condition during the piston pressure strokes, and said valve assembly being slidable along said barrel in response to the pressure and return strokes and having means engaging said spin mechanics element to therewith define a variable volume suction chamber during sliding movement for retracting liquid product inwardly of said discharge orifice to avoid any formation of dribbles and drips thereat.
- a trigger actuated pump sprayer comprising, a discharge valve assembly according to the invention, and
- a suction chamber is defined between a slidable valve assembly and a spin mechanics element fixed at the nozzle end of the discharge barrel, the suction chamber communicating with the discharge orifice.
- the valve assembly reciprocates during pressure and return strokes to not only valve product toward the discharge orifice, but to reciprocate in the discharge barrel for suctioning product inwardly of the discharge orifice to avoid the formation of dribbles and drips thereat.
- the discharge valve assembly may be stationary within the discharge barrel, and a discharge passage volume reducer is provided to restrict the accumulation of product within the passage to thereby aid in pump priming.
- the volume reducer may be in the form of a sleeve or a cylinder or the like.
- the valve assembly preferably includes an elastomeric circular valve disc in sealing engagement along its outer periphery with an inner wall of the discharge barrel in the valve closed condition, at least a portion of such outer periphery disengaging the inner wall in a valve open condition.
- the discharge passage volume reducer may likewise be provided for that embodiment of the invention which includes a longitudinally slidable valve assembly provided to withdraw product inwardly of the discharge orifice.
- a manually actuated pump dispenser incorporating the invention is generally designated 20 in Fig. 1 as comprising a pump body 21 adapted to be mounted to the neck of a container 22 of liquid product to be dispensed, utilizing an internally threaded closure cap 23.
- a snap closure could (not shown) otherwise be provided for mounting the pump body or the container, or the pump body could be mounted to the container neck utilizing a bayonet-type fitment (not shown).
- the pump body includes an inlet passage 24 defined by an upstanding cylindrical portion 25 of the pump body which suspends a conventional dip tube 26 immersed at its free end in liquid product (not shown) in the container, the dip tube being suspended by tight frictional engagement with the inner wall of portion 25.
- the dip tube may be otherwise suspended from portion 25 in any known manner.
- the pump body likewise includes a pump cylinder 27 for the reception of a manually reciprocable pump piston 28 having an inboard annular piston seal 29 defining together with the pump cylinder a variable volume pump chamber 31.
- An inlet ball check valve 30 or the like is provided for valving the inlet in any known manner.
- a piston return spring 32 is provided, which may be internally of the pump chamber as shown or which may be external to the pump chamber (not shown), for returning the piston to its Fig. 1 position after each pressure stroke.
- a trigger actuator 33 is pivotally mounted on the pump body, the trigger having a projection 34 engaging an outer edge of the piston for reciprocating the piston upon each pull of the trigger against the force of return spring 32.
- the piston may likewise have an outboard annular vent seal 35 in sealing engagement with the inner wall of the pump cylinder outboard of a longitudinal rib or ribs 36 on the inner wall for breaking the seal during piston reciprocation to open vent port 37 to atmosphere to thereby vent the interior of the container. See RE33,235 for a detailed disclosure of the aforedescribed trigger sprayer.
- Cylindrical portion 25 has a port 38 through which liquid product enters and exits the pump chamber, the port communicating via an opening 39 with a substantially horizontal discharge barrel 41 through which liquid product passes, the terminal end of barrel 41 defining a nozzle 42.
- the cap has an inner cylindrical sleeve 47 with internal longitudinal passages, the sleeve surrounding a spin mechanics element 48 mounted within nozzle 42, element 48 having circumferentially spaced apart ears 49, one of which engages a detent 51 for snap fitting element 48 in place against rotation.
- a stop shoulder 50 or the like may be provided internally of the barrel for mounting the spin mechanics element against axial movement.
- the front wall of element 48 defines a spin chamber 52 as having a plurality of tangential and radial grooves extending between that chamber and longitudinal grooves provided on the outer wall of element 48.
- a spin chamber 52 as having a plurality of tangential and radial grooves extending between that chamber and longitudinal grooves provided on the outer wall of element 48.
- the internal grooves within sleeve 47 and the external grooves on element 48 match or mismatch for opening and closing the discharge orifice, all as described in detail in commonly owned patent 4,706,888.
- the pump body may be covered with a shroud 53 snapped or otherwise mounted thereto in some normal manner.
- a discharge valve assembly 54 is located within barrel 41, the assembly including an elastomeric circular valve disc 55 in sealing engagement along its outer periphery with inner wall 56 of barrel 41.
- the valve which may be frusto-conical as shown, has an outer diameter slightly greater than the inner diameter of wall 56 as to inherently provide a biasing action of the valve against wall 56.
- the conical valve is sometimes referred to as a chevron valve.
- Assembly 54 is disposed within discharge barrel 41 for longitudinal shifting movement therealong, the assembly further including support means for the valve and the spin mechanics element which may be in the form of an elongated cylindrical rod 57 with which valve 55 may be integrally molded.
- Spin mechanics element 48 has a central, cylindrical depression 58 (Fig. 1A) which may be either slightly oversized relative to the diameter size of rod 57, or which may have one or more longitudinal grooves formed on its inner wall.
- the downstream end of rod 57 extends into depression 58 and therewith defines a variable volume suction chamber 59 in open communication with orifice 44 in the discharge open rotative position of the nozzle cap.
- a hollow sleeve 61 may surround rod 57, the inner diameter of the sleeve being slightly greater than the diameter of rod 57 to therewith define an annular discharge passage 62.
- Sleeve 61 functions as a means for reducing the volume of discharge barrel 41 for a purpose to be explained more fully hereinafter.
- one or more longitudinal ribs 63 or the like may be provided on rod 57 adjacent valve 55, the ribs acting as spacers for sleeve 61 to maintain the sleeve axially spaced from the valve to avoid any interference during valve opening.
- each inward (pressure) stroke applied to the piston upon each pull of the trigger increases the pressure of the liquid at the upstream side of valve 55 causing at least a portion of the valve periphery to disengage from inner wall 56 to thereby open the discharge permitting liquid under pressure to flow through passage 62 and out through orifice 44 as a spray or a stream depending on the manual setting of nozzle cap 43.
- Pressurized product from the pump chamber acting against the upstream face of valve 55 likewise causes the entire valve assembly 54 to longitudinally shift in a downstream direction whereupon rod 57 reciprocates within depression 58 thereby evacuating chamber 59 of any fluid.
- the pump piston Upon relaxation of the manual force applied against the trigger, the pump piston shifts outwardly of its cylinder bore under the influence of the force of return spring 32 as in any normal manner, to thereby expand pump chamber 31 which functions to draw liquid up the dip tube and into the pump chamber via the unseated valve check ball 30 and port 38.
- This sub-atmospheric pressure created by the expanding pump chamber likewise causes valve 55 to tightly reseal against inner wall 56 by reason of the pressure differential existing on opposite sides of the valve.
- the closing of the discharge valve permits the pump chamber to be primed as aforedescribed.
- valve 55 causes rod 57 to reciprocate upstream in a direction outwardly of chamber 59 to thereby create a sub-atmospheric condition therein for suctioning any residual product from orifice 44 to avoid the formation of dribbles and drips thereat.
- each pressure stroke of the piston product flows into and through discharge barrel portion 41 before discharging out of the orifice in the form of a spray or a stream, depending on the setting of the discharge nozzle.
- the volume of barrel 41 is significantly greater, and this volume is initially air filled before pump priming such that the liquid product displaces the air gradually during each initial pressure stroke.
- the strokes-to-prime ratio experienced during initial pumping without the provision of a volume reducer, has been shown to be higher than acceptable.
- sleeve 61 surrounding rod 57, significantly reduces the volume of discharge barrel 41 and defines a thin, annular discharge passage 62 together with the rod.
- Sleeve 61 therefore functions as a priming aid as it displaces the air in barrel 41, such that a reduced volume of air must be initially displaced by the liquid product, as it passes through the discharge during the initial pressure strokes. It has been shown that with the provision of the volume reducer the strokes-to-prime ratio drops to a more acceptable level.
- valve assembly retracts as it shifts slightly rearwardly in an upstream direction to thereby expand suction chamber 59.
- the expanding chamber being in open communication with discharge orifice 44, functions to retract product into and behind the orifice which may collect outwardly of the orifice in the form of product dribbles or drips, to therefore provide an anti-drooling effect.
- a light spring 64 of some type may be provided in suction chamber 59 between the bottom wall of the chamber and the front wall of rod 57, for assisting in retracting the discharge valve assembly to cause it to shift outwardly of chamber 59 during each piston return stroke.
- the spring 64 may be in the form of a coil spring, a leaf spring, or any equivalent light spring, without departing from the invention.
- Figs. 2 to 11 show various modifications of the discharge valve assembly according to the invention.
- discharge valve assembly 65 of Fig. 2 is similar to valve assembly 54 of Fig. 1 in that they both include rod 57 as having an integrally molded conical valve disc 55 which is spring biased under its own resiliency along its periphery which bears against inner wall 56 of barrel 41.
- valve assembly 65 is movable longitudinally within cylindrical depression 58 of spin mechanics element 48 to therewith define the variable volume suction chamber 59 as described in detail with reference to Fig. 1.
- a hollow sleeve 61 surrounds rod 57 and therewith defines an annular discharge passage 62 through which liquid product under pressure during pumping passes and applies pressure against the upstream side of valve 55 to both deform the valve into an open position and to shift the valve assembly downstream, causing the tip of the rod to reciprocate within chamber 59.
- Valve assembly 65 and volume reducer 61 function in the same manner as described with reference to Fig. 1. As seen in Fig. 2, the main difference between valve assembly 54 and valve assembly 65 is that in the latter the valve disc is located further downstream in barrel 41 as compared to the upstream location of disc 55 in Fig. 1.
- Discharge valve assembly 66 in the Fig. 3 embodiment comprises a combined filler in the form of a tubular portion 67 integral with spin mechanics element 48, which is otherwise identical to that described with reference to Fig. 1.
- Assembly 66 is fixed within cylindrical portion 41 as one of its ears 49 is snap-fitted to detent 51.
- the assembly may include a separate valve element 68 on which conical valve 55 is formed, the valve being seated along its outer periphery against inner wall 56 for closing discharge passage 62 formed between the outer diameter of tubular portion 67 and the inner diameter of cylindrical portion 41.
- Valve element 68 may be simply telescoped within the open end of portion 67 in frictional engagement with the wall at the inner diameter thereof.
- Discharge valve assembly 69 of the Fig. 4 embodiment comprises a hollow tubular section 71 fixed within discharge barrel 41, such as by frictional engagement with a peg 72 provided on pump body 21, the discharge valve assembly further including an integral rod portion 73 fixed to a separate spin mechanics element 48 upon frictional engagement with the wall of depression 58 thereof.
- Conical valve disc 55 may be formed integrally with rod portion 73, shown seated in place as its outer periphery seals against the inner wall 56 of portion 41.
- Discharge passage 62 is established between the outer diameter of section 71 and the inner diameter of barrel 41, such that liquid product under pressure passing therethough bears against the upstream side of valve disc 55 causing it to deform and at least a portion thereof to move away from its valve seat to thereby open the discharge to the discharge orifice.
- discharge valve assembly 74 is, as discharge valve assemblies 54 and 65 of Figs. 1 and 2, mounted within discharge barrel 41 for longitudinal shifting movement so as to provide a similar anti-drool feature.
- the assembly includes a rod 57 engageable with the wall of cylindrical depression 58 of spin mechanics 48 to therewith define variable volume suction chamber 59 to effect product retraction at the discharge orifice as in the manner and for the purpose as described with reference to Fig. 1.
- Rod 57 has at its upstream end an integral conical valve 55 which, as in the foregoing embodiments, has its outer peripheral edge in sealing engagement with the inner wall 56 of portion 41 for closing discharge passage 62.
- valve assembly 74 includes along the length of its rod 57 a plurality of spaced integral circular discs 75 or the like which function as a filler to reduce the volume within barrel 41 to thereby function in the same or similar manner as filler elements 61, 71 and 61 as aforedescribed.
- Discharge valve assembly 74 shifts in a downstream direction during each pressure stroke which supplies product under pressure against the upstream side of valve disc 55 thereby deforming at least a portion of that disc for opening discharge passage 62 and for likewise effecting a longitudinal shift of the assembly within barrel 41 to thereby provide an anti-drool feature.
- valve assembly retracts during each suction stroke of the piston as the pressure on the upstream side of valve disc 55 is below atmospheric relative to the pressure on the downstream side thereof, to thereby retract rod 57 out of cylindrical depression 58.
- a light return spring 64 of some selected type can be provided to assist in the retraction process of the valve assembly.
- Discharge valve assembly 76 of the Fig. 6 embodiment includes a hollow tubular section 77 in frictional engagement with spin mechanics element 48 so as to be thereby fixed within discharge barrel 41.
- a discharge valve disc 78 of flexible, elastomeric material, is deformed when assembled within barrel 41 such that it assumes a concave shape as shown which possess an inherent biasing capacity as its outer peripheral edge sealingly engages against inner wall 56 of barrel 41 for valving discharge passage 62.
- the valve disc may be mounted in place by the provision of a central opening 79 therein through which a pin 81 on the pump body extends.
- Section 77 may engage the pin as shown, or the pin may be provided on section 77 and be extended through central opening 79 of the valve disc for stabilizing the same within barrel 41.
- Discharge valve assembly 82 of the Fig. 7 embodiment is fixed within barrel 41 as an ear 49 on spin mechanics element 48 engages detent 51.
- the assembly includes a downstream tubular section 83 formed integrally with element 48, and an upstream sleeve 84 fixed in place by frictional engagement with peg 72.
- a valve element 85 carrying conical discharge valve 55 interconnects section 83 and sleeve 84 as it frictionally engages the interior hollow ends thereof as shown.
- Discharge passage sections 62 are established between the inner diameter of barrel 41 and the outer diameters of sleeve 84 and of tubular section 83, respectively.
- conical valve 55 is substantially intermediate the upstream and downstream ends of barrel 41, as compared to the locations of the discharge valves in the foregoing embodiments.
- Valve 55 functions similarly as described above for valving product through the discharge passage, and elements 83, 84 of the discharge valve assembly function as filler elements for reducing the volume of barrel 41 as for the purpose and in the manner as described with reference to
- discharge valve assembly 86 includes filler element in the form of a tubular section 87 fixed within portion 41 as it frictionally engages with peg 72.
- Discharge valve disc 78 which may be of the same or similar type as described with reference to Fig. 6, is mounted via its central opening on pin 81 at the downstream end of section 87.
- the valve assembly includes a hollow tubular extender 88 engaging pin 81 and cylindrical depression 58 of the spin mechanics element.
- Discharge valve assembly 89 of Fig. 9 includes a hollow sleeve 91 fixed to peg 72 and functioning as a filler element, the sleeve defining together with the inner wall of barrel 41 a discharge passage 62.
- Valve element 92 interconnects spin mechanics element 48 with sleeve 91 via frictional engagement as shown.
- Conical valve element 55 is formed on element 92 which functions to valve product through the discharge passage similarly as described with reference to the other embodiments.
- Discharge valve assembly 93 in Fig. 10 comprises a tubular element 94 fixed within cylindrical portion 41 and connected to spin mechanics element 48 by frictional engagement as shown.
- the assembly further has a valve element 95 to which conical valve 55 is integrally molded, the valve element being fixed to tubular element 94 upon frictional engagement.
- Element 94 defines an annular discharge passage 62 together with inner wall 56, and valve 55 is seated against wall 56 about its annular outer edge.
- Element 94 functions as a filler for reducing the volume of cylindrical portion 41 as for the purpose and functioning in the manner described with reference to Fig. 1.
- Fig. 11 embodiment has a discharge valve assembly 96 which includes filler element formed as a molded cylinder 97 fixed to peg 72 at its upstream end, and being supported against valve element 98 which extends into frictional engagement with spin mechanics element 48.
- the valve element includes a conical discharge valve 55 which, as in all other embodiments, is seated along its outer periphery against inner wall 56 for valving discharge passage 62 which is defined between cylinder 97 and wall 56.
- the discharge valve may be in the form of a conical valve or a disc valve shaped into a concave face upon assembly, either such valve being seated along its outer periphery against the confronting inner wall of the discharge barrel.
- the valve may be located at a variety of positions along the length of the barrel.
- the discharge valve assemblies according to several embodiments of the invention are shiftable in an axial direction along the length of the discharge barrel so that a rod or rod portion as part of the valve assembly slides within a cupped depression of the spin mechanics element to therewith define a variable volume suction chamber. That chamber is in fluid communication with the discharge orifice for thereby drawing or retracting product from and around the discharge orifice to avoid the formation of product droplets thereat.
- Such an anti-drool feature requires no additional parts and is a simple, yet highly effective means of avoiding the formation of any product dribbles and drips at the discharge orifice.
- the anti-drool feature can be provided independently of a discharge volume reducer, without departing from the invention.
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- Reciprocating Pumps (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Details Of Reciprocating Pumps (AREA)
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Claims (41)
- Ensemble de vanne de décharge (54) adapté pour utilisation avec un pulvérisateur à pompe destiné à être monté sur un récipient de liquide (22), le pulvérisateur ayant un corps de pompe (21) comprenant un cylindre de décharge (41) ayant un orifice de décharge (44) à une extrémité aval de celui-ci, caractérisé en ce que l'ensemble de vanne comprend un disque de vanne flexible (55) ayant un bord périphérique externe en prise étanche avec une paroi interne (56) dudit cylindre (41) dans une position fermée de la vanne, des moyens comprenant un mécanisme de rotation (48) fixé à ladite extrémité aval, et un élément de remplissage disposé dans ledit cylindre (41) s'étendant sensiblement entre une extrémité amont du cylindre (41) et lesdits moyens de mécanisme de rotation (48) pour réduire le volume du produit liquide dans le cylindre (41) durant le fonctionnement du pulvérisateur à pompe, ledit élément de remplissage définissant un passage de décharge pour la décharge d'un produit liquide depuis l'orifice (44).
- Ensemble de vanne de décharge selon la revendication 1, dans lequel la vanne est raccordée aux moyens de mécanisme de rotation pour déplacement le long de la longueur du cylindre durant le fonctionnement de la pompe.
- Ensemble de vanne de décharge selon la revendication 1 ou la revendication 2, dans lequel le disque de vanne est en matériau flexible.
- Ensemble de vanne de décharge selon la revendication 2, dans lequel la vanne est en position adjacente à l'extrémité amont du cylindre.
- Ensemble de vanne de décharge selon la revendication 2, dans lequel la vanne est en position adjacente à l'extrémité aval du cylindre.
- Ensemble de vanne de décharge selon l'une quelconque des revendications précédentes, dans lequel l'élément de remplissage raccorde les moyens de mécanisme de rotation à la vanne.
- Ensemble de vanne de décharge selon la revendication 6, dans lequel la vanne est située entre lesdites extrémités amont et aval.
- Ensemble de vanne de décharge selon la revendication 1, dans lequel ledit disque de vanne flexible est d'un diamètre supérieur au diamètre dudit cylindre pour engager de manière résiliente la paroi interne dudit cylindre dans une position de vanne fermée et pour désengager ladite paroi interne dans une position de vanne ouverte, ledit ensemble comprenant en outre des moyens de support pour lesdits moyens de mécanisme de rotation et ledit disque de vanne, lesdites moyens de support s'étendant entre une extrémité amont dudit cylindre et ladite extrémité aval, lesdits moyens de support comprenant ou étant situés dans ledit élément de remplissage.
- Ensemble de vanne selon la revendication 8, dans lequel ledit disque de vanne est située à ladite extrémité amont.
- Ensemble de vanne selon la revendication 8 ou la revendication 9, dans lequel lesdits moyens de support comprennent une tige déplaçable le long dudit passage en réponse à des courses de pression et d'aspiration appliquées durant le pompage, ladite tige s'engageant dans une cavité dans lesdits moyens de mécanisme de rotation pour définir avec ceux-ci une chambre d'aspiration à volume variable durant le déplacement de la tige pour retirer le produit liquide dudit orifice durant le pompage pour éviter la formation de bavures et de gouttes au niveau de celui-ci.
- Ensemble de vanne selon la revendication 9, dans lequel lesdits moyens de support comprennent une tige, et ledit élément de remplissage comprend un tube creux entourant ladite tige.
- Ensemble de vanne selon la revendication 8, dans lequel ledit disque de vanne est situé en position adjacente auxdits moyens de mécanisme de rotation.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent un élément cylindrique avec lequel lesdits moyens de mécanisme de rotation sont formés intégralement, ledit élément cylindrique ayant un diamètre externe légèrement inférieur au diamètre du cylindre pour réduire ledit volume.
- Ensemble de vanne selon la revendication 8, dans lequel ledit disque de vanne comprend une jupe de vanne tronconique inclinée vers ladite paroi interne dans une direction aval.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent un élément cylindrique couplé auxdits moyens de mécanisme de rotation, ledit élément cylindrique ayant une taille de diamètre par rapport audit cylindre pour réduire ledit volume.
- Ensemble de vanne selon la revendication 15, dans lequel ledit disque de vanne est formé intégralement avec ledit élément cylindrique.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent une tige couplée auxdits moyens de mécanisme de rotation, ladite tige ayant une section agrandie pour réduire ledit volume.
- Ensemble de vanne selon la revendication 10, dans lequel ladite tige a une section agrandie pour réduire ledit volume.
- Ensemble de vanne selon la revendication 8, dans lequel ledit disque de vanne est situé entre lesdites extrémités amont et aval.
- Ensemble de vanne selon la revendication 19, dans lequel lesdits moyens de support comprennent un élément cylindrique formé intégralement avec lesdits moyens de mécanisme de rotation.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent un élément cylindrique sur lequel ledit disque de vanne est monté en position adjacente auxdits moyens de mécanisme de rotation, et un extenseur pour coupler lesdits moyens de mécanisme de rotation audit élément cylindrique.
- Ensemble de vanne selon la revendication 21, dans lequel ledit élément cylindrique a un diamètre dimensionné au diamètre de ladite paroi interne de manière à réduire ledit volume.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent un élément cylindrique et un extenseur pour coupler lesdits moyens de mécanisme de rotation audit élément cylindrique, ledit disque de vanne étant formé intégralement avec ledit extenseur.
- Ensemble de vanne selon la revendication 8, dans lequel lesdits moyens de support comprennent un élément cylindrique couplé auxdits moyens de mécanisme de rotation, et un tenon sur ledit corps de pompe couplé audit élément cylindrique, ledit disque de vanne étant monté sur ledit tenon.
- Ensemble de vanne de décharge selon la revendication 1, dans lequel ledit disque de vanne est monté sur un élément de tige qui comprend ou est situé dans ledit élément de remplissage et qui est situé le long d'un axe central dudit cylindre et qui engage lesdits moyens de mécanisme de rotation pour un déplacement coulissant axial par rapport à ceux-ci durant le fonctionnement du pulvérisateur à pompe.
- Ensemble de vanne de décharge selon la revendication 25, dans lequel l'élément de tige s'engage dans une dépression formée dans lesdits moyens de mécanisme de rotation pour définir avec ceux-ci une chambre d'aspiration en communication avec ledit orifice pour retirer un produit liquide dudit orifice durant le déplacement coulissant de l'élément de tige depuis l'orifice.
- Ensemble de vanne de décharge selon la revendication 25, dans lequel le disque de vanne est situé en position adjacente à une extrémité amont du cylindre.
- Ensemble de vanne de décharge selon la revendication 25, dans lequel le disque de vanne est situé en position adjacente auxdits moyens de mécanisme de rotation.
- Ensemble de vanne de décharge selon la revendication 25, dans lequel le disque de vanne est en matériau flexible.
- Ensemble de vanne de décharge selon la revendication 26, dans lequel des moyens de ressort sont situés dans ladite chambre d'aspiration pour dévier ledit élément de tige depuis ledit orifice.
- Pulvérisateur à pompe actionné par gâchette comprenant un ensemble de vanne de décharge selon l'une quelconque des revendications précédentes, et une chambre de pompe à volume variable en communication avec ledit cylindre de décharge, ladite chambre de pompe à volume variable étant définie par un piston manuellement réciproque actionné entre des courses de pression et de retour dans un cylindre de pompe dudit corps pour décharger un produit liquide à travers ledit orifice de décharge à ladite extrémité aval dudit cylindre, ledit disque de vanne étant en engagement étanche le long de sa périphérie externe avec une paroi interne dudit cylindre dans une condition de vanne fermée durant les courses de retour du piston, au moins une partie de ladite périphérie externe désengageant ladite paroi interne dans une condition de vanne ouverte durant les courses de pression du piston, et ledit ensemble de vanne étant coulissant le long dudit cylindre en réponse aux courses de pression et de retour et ayant des moyens engageant ledit élément de mécanisme de rotation de manière à définir avec celui-ci une chambre d'aspiration à volume variable durant le déplacement coulissant pour retirer un produit liquide vers l'intérieur dudit orifice de décharge pour éviter une formation de bavures et de gouttes au niveau de celui-ci.
- Pulvérisateur à pompe comprenant un ensemble de vanne de décharge selon la revendication 1, dans lequel lesdits moyens engageant ledit élément de mécanisme de rotation comprennent une tige coulissant dans une dépression creuse dans ledit élément pour définir ladite chambre d'aspiration.
- Pulvérisateur à pompe selon la revendication 32, dans lequel lesdits moyens de ressort sont disposés dans ladite chambre d'aspiration pour dévier ladite tige depuis ledit élément de mécanisme de rotation.
- Pulvérisateur à pompe selon la revendication 31, dans lequel ladite vanne de décharge est située à une extrémité amont dudit passage, lesdits moyens sur ledit ensemble de vanne comprennent une tige, et ledit élément de remplissage comprend un manchon entourant ladite tige et définissant avec celle-ci ledit trajet de décharge.
- Pulvérisateur à pompe selon la revendication 34, dans lequel des moyens sont disposés sur ladite tige pour espacer axialement ledit manchon de ladite vanne pour éviter une interférence dans la condition de vanne ouverte.
- Pulvérisateur à pompe selon la revendication 31, dans lequel ladite vanne de décharge est située en position adjacente à ladite extrémité aval dudit cylindre.
- Pulvérisateur à pompe selon la revendication 31, dans lequel ladite vanne de décharge est située en position adjacente à ladite extrémité aval dudit passage, lesdits moyens dudit ensemble de vanne comprenant une tige, et ledit élément de remplissage comprenant un manchon entourant ladite tige et définissant avec celle-ci ledit passage de décharge.
- Pulvérisateur à pompe selon la revendication 37, dans lequel ladite tige s'étend à une extrémité amont dudit passage.
- Pulvérisateur à pompe selon la revendication 31, dans lequel lesdits moyens dudit ensemble de vanne comprennent un élément allongé ayant une section agrandie pour remplir sensiblement ledit cylindre pour réduire le volume de produit liquide dans ledit cylindre durant l'opération de pompage.
- Pulvérisateur à pompe selon la revendication 31, dans lequel ladite vanne comprend une vanne conique inclinée dans une direction aval.
- Pulvérisateur à pompe selon la revendication 31, dans lequel ladite vanne a un côté concave orienté dans une direction amont.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US323160 | 1999-06-01 | ||
US09/323,160 US6131820A (en) | 1999-06-01 | 1999-06-01 | Discharge valve assembly for trigger sprayer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1057537A2 EP1057537A2 (fr) | 2000-12-06 |
EP1057537A3 EP1057537A3 (fr) | 2004-06-30 |
EP1057537B1 true EP1057537B1 (fr) | 2007-08-08 |
Family
ID=23257966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00304585A Expired - Lifetime EP1057537B1 (fr) | 1999-06-01 | 2000-05-31 | Ensemble de valve de décharge pour pulvérisateur à gachette |
Country Status (15)
Country | Link |
---|---|
US (1) | US6131820A (fr) |
EP (1) | EP1057537B1 (fr) |
JP (1) | JP3679977B2 (fr) |
KR (1) | KR100491856B1 (fr) |
CN (1) | CN1125688C (fr) |
AR (1) | AR024265A1 (fr) |
AT (1) | ATE369211T1 (fr) |
AU (1) | AU761889B2 (fr) |
BR (1) | BR0002490A (fr) |
CA (1) | CA2310339C (fr) |
DE (1) | DE60035828T2 (fr) |
ES (1) | ES2286984T3 (fr) |
HK (1) | HK1030756A1 (fr) |
PL (1) | PL194999B1 (fr) |
TW (1) | TW469174B (fr) |
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AU780401B2 (en) * | 1994-10-26 | 2005-03-17 | Yoshino Kogyosho Co., Ltd. | Trigger type liquid discharge device |
ES2167160B1 (es) * | 1999-06-16 | 2003-10-01 | Calmar Monturas Sa | Bomba pulverizadora de liquidos. |
US7500621B2 (en) | 2003-04-10 | 2009-03-10 | Homax Products, Inc. | Systems and methods for securing aerosol systems |
JP2006010038A (ja) * | 2004-06-29 | 2006-01-12 | Smc Corp | サックバックバルブ |
JP2006010037A (ja) * | 2004-06-29 | 2006-01-12 | Smc Corp | サックバックバルブ |
CN1315580C (zh) * | 2005-01-26 | 2007-05-16 | 袁建军 | 一种枪式喷头 |
US20060289679A1 (en) * | 2005-06-27 | 2006-12-28 | Johnson Kaj A | Modular sprayer |
US7775405B2 (en) * | 2006-12-22 | 2010-08-17 | Meadwestvaco Calmar, Inc. | Sprayer including pressure build-up discharge valve assembly with poppet valve having integrated spring |
US8469292B1 (en) | 2007-04-04 | 2013-06-25 | Homax Products, Inc. | Spray texture material compositions and dispensing systems and methods |
TWI346634B (en) * | 2007-05-18 | 2011-08-11 | Sikorsky Aircraft Corp | Engine anticipation for rotary wing aircraft |
US10159997B2 (en) | 2009-11-30 | 2018-12-25 | Silgan Dispensing Systems Corporation | Low cost trigger sprayer |
EP2534069B1 (fr) * | 2010-02-10 | 2015-08-26 | S.C. Johnson & Son, Inc. | Bouchon pour une bombe aérosol |
IT1399591B1 (it) * | 2010-04-14 | 2013-04-26 | Guala Dispensing Spa | Erogatore a grilletto per liquidi con valvole di testa. |
US8322631B2 (en) | 2010-05-10 | 2012-12-04 | The Procter & Gamble Company | Trigger pump sprayer having favorable particle size distribution with specified liquids |
US8322630B2 (en) | 2010-05-10 | 2012-12-04 | The Procter & Gamble Company | Trigger pump sprayer |
US9546346B2 (en) | 2011-04-07 | 2017-01-17 | The Dial Corporation | Use of polyethylene glycol to control the spray pattern of sprayable liquid abrasive cleansers |
EP2696990B1 (fr) | 2011-04-13 | 2020-08-05 | Silgan Dispensing Systems Corporation | Vannes de pulvérisateur à déclencheur améliorées |
US8864052B2 (en) * | 2011-04-29 | 2014-10-21 | Meadwestvaco Calmar, Inc. | Low cost trigger sprayer |
US9248457B2 (en) | 2011-07-29 | 2016-02-02 | Homax Products, Inc. | Systems and methods for dispensing texture material using dual flow adjustment |
US9156042B2 (en) | 2011-07-29 | 2015-10-13 | Homax Products, Inc. | Systems and methods for dispensing texture material using dual flow adjustment |
ITMI20112168A1 (it) | 2011-11-28 | 2013-05-29 | Mwv Vicenza S P A | Spruzzatore per liquidi con camera di precompressione |
WO2013116147A2 (fr) * | 2012-01-31 | 2013-08-08 | Meadwestvaco Calmar, Inc. | Organes de commande d'aérosol dotés de canaux d'écoulement de volume réduit |
FR3008328B1 (fr) * | 2013-07-09 | 2015-07-24 | Sames Technologies | Pulverisateur de projection electrostatique de produit de revetement et installation de projection de produit de revetement comprenant un tel pulverisateur |
EP3213822B1 (fr) * | 2014-10-31 | 2020-09-16 | Yoshino Kogyosho Co., Ltd. | Pulvérisateur de liquide de type à gâchette |
JP6460886B2 (ja) * | 2015-03-31 | 2019-01-30 | 株式会社吉野工業所 | トリガー式液体噴出器 |
USD787326S1 (en) | 2014-12-09 | 2017-05-23 | Ppg Architectural Finishes, Inc. | Cap with actuator |
CN107690412B (zh) | 2015-04-06 | 2020-05-05 | 约翰逊父子公司 | 分配系统 |
JP6833361B2 (ja) * | 2016-06-24 | 2021-02-24 | キャニヨン株式会社 | 蓄圧式スプレー |
CN106110547B (zh) * | 2016-08-10 | 2021-08-27 | 杨峰 | 喷头及消防水枪 |
PL429898A1 (pl) * | 2019-05-10 | 2020-11-16 | Pawłuszek Anna Findustry | Urządzenie dozujące |
US11519394B2 (en) * | 2019-06-25 | 2022-12-06 | The Procter & Gamble Company | Buffered pump system |
US11219910B2 (en) * | 2019-09-10 | 2022-01-11 | Silgan Dispensing Systems Corporation | Trigger sprayer with improved venting system and methods of using the same |
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US33235A (en) * | 1861-09-10 | Improvement | ||
JPS538969Y2 (fr) * | 1975-08-08 | 1978-03-09 | ||
US4527741A (en) * | 1983-06-13 | 1985-07-09 | The Afa Corporation | Trigger pump sprayer |
JPS605249A (ja) * | 1983-06-22 | 1985-01-11 | Canyon Corp | 噴霧器 |
USRE33235E (en) | 1984-03-07 | 1990-06-19 | Corsette Douglas Frank | Liquid dispensing pump |
US4706888A (en) * | 1986-07-11 | 1987-11-17 | Calmar, Inc. | Multi-purpose nozzle assembly |
US5114052A (en) * | 1988-08-25 | 1992-05-19 | Goody Products, Inc. | Manually actuated trigger sprayer |
US4944431A (en) * | 1988-09-23 | 1990-07-31 | Blake William S | Trigger sprayer with multi-function piston |
US4958754A (en) * | 1989-03-01 | 1990-09-25 | Continental Sprayers, Inc. | Dispenser or sprayer with vent system |
US4971227A (en) * | 1989-06-02 | 1990-11-20 | Calmar, Inc. | Manually actuated dispensing pump sprayer having a removable nozzle locking element |
FR2665848B1 (fr) * | 1990-08-17 | 1992-10-30 | Aerosols & Bouchage | Buses a clapet incorpore. |
US5385302A (en) * | 1990-10-25 | 1995-01-31 | Contico | Low cost trigger sprayer |
US5234166A (en) * | 1990-10-25 | 1993-08-10 | Contico International, Inc. | Spinner assembly for a sprayer |
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US5535950A (en) * | 1994-12-07 | 1996-07-16 | Calmar Inc. | Dual trigger sprayer |
US5711459A (en) * | 1995-08-07 | 1998-01-27 | Ideal Ideas, Inc. | Double action trigger sprayer |
US5687877A (en) * | 1995-11-03 | 1997-11-18 | Owens-Illinois Closure Inc. | Pump dispenser having moveable outlet check valve element |
US5785208A (en) * | 1996-04-10 | 1998-07-28 | Calmar Inc. | Precompression pump sprayer having suck-back feature |
US5752629A (en) * | 1996-04-12 | 1998-05-19 | The Procter & Gamble Company | Passive venting for pump dispensing device |
JP4472086B2 (ja) * | 2000-01-26 | 2010-06-02 | アイリスオーヤマ株式会社 | 散水ノズル |
-
1999
- 1999-06-01 US US09/323,160 patent/US6131820A/en not_active Expired - Fee Related
-
2000
- 2000-05-08 AU AU32583/00A patent/AU761889B2/en not_active Ceased
- 2000-05-23 TW TW089109904A patent/TW469174B/zh not_active IP Right Cessation
- 2000-05-25 BR BR0002490-2A patent/BR0002490A/pt not_active IP Right Cessation
- 2000-05-29 KR KR10-2000-0028916A patent/KR100491856B1/ko not_active IP Right Cessation
- 2000-05-30 CA CA002310339A patent/CA2310339C/fr not_active Expired - Fee Related
- 2000-05-31 DE DE60035828T patent/DE60035828T2/de not_active Expired - Lifetime
- 2000-05-31 JP JP2000162347A patent/JP3679977B2/ja not_active Expired - Fee Related
- 2000-05-31 AT AT00304585T patent/ATE369211T1/de not_active IP Right Cessation
- 2000-05-31 EP EP00304585A patent/EP1057537B1/fr not_active Expired - Lifetime
- 2000-05-31 ES ES00304585T patent/ES2286984T3/es not_active Expired - Lifetime
- 2000-06-01 CN CN00109331A patent/CN1125688C/zh not_active Expired - Fee Related
- 2000-06-01 PL PL340448A patent/PL194999B1/pl unknown
- 2000-06-01 AR ARP000102716A patent/AR024265A1/es active IP Right Grant
-
2001
- 2001-03-09 HK HK01101719A patent/HK1030756A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1057537A2 (fr) | 2000-12-06 |
AU761889B2 (en) | 2003-06-12 |
AR024265A1 (es) | 2002-09-25 |
PL194999B1 (pl) | 2007-07-31 |
KR100491856B1 (ko) | 2005-05-27 |
HK1030756A1 (en) | 2001-05-18 |
JP3679977B2 (ja) | 2005-08-03 |
ES2286984T3 (es) | 2007-12-16 |
PL340448A1 (en) | 2000-12-04 |
US6131820A (en) | 2000-10-17 |
AU3258300A (en) | 2000-12-07 |
DE60035828D1 (de) | 2007-09-20 |
JP2001017896A (ja) | 2001-01-23 |
EP1057537A3 (fr) | 2004-06-30 |
CA2310339A1 (fr) | 2000-12-01 |
CN1125688C (zh) | 2003-10-29 |
BR0002490A (pt) | 2001-01-02 |
KR20010049439A (ko) | 2001-06-15 |
DE60035828T2 (de) | 2008-04-30 |
ATE369211T1 (de) | 2007-08-15 |
TW469174B (en) | 2001-12-21 |
CA2310339C (fr) | 2006-07-18 |
CN1275446A (zh) | 2000-12-06 |
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